package servlet;

import pojo.Dept;
import service.DeptService;
import service.impl.DeptServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;


// 注解
@WebServlet(urlPatterns = "/dept")
public class DeptServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        DeptService deptService = new DeptServiceImpl();
        req.setCharacterEncoding("UTF-8");
        String action = req.getParameter("action");
        if ("list".equals(action)){
            String name = req.getParameter("name");
            Dept condition = new Dept(name);
            List<Dept> depts = deptService.findAll(condition);

            req.setAttribute("depts",depts);
            req.setAttribute("dept", condition);
            req.getRequestDispatcher("/index.jsp").forward(req, resp);
        }else if ("delete".equals(action)){
            String sid = req.getParameter("id");
            int id = Integer.parseInt(sid);
            // 根据id查询用户信息
            int result = deptService.deleteDept(id);
            // 重定向到查询所有用户的页面
            resp.sendRedirect("dept?action=list");
        }else if ("toUpdate".equals(action)){
            String sid = req.getParameter("id");
            Integer id = Integer.parseInt(sid);
            // 根据id查询用户信息
            Dept dept = deptService.findDeptById(id);
            // 将查询到的用户信息存储到作用域中
            req.setAttribute("dept", dept);
            req.getRequestDispatcher("/update.jsp").forward(req, resp);
        }else if ("update".equals(action)){
            String sid = req.getParameter("id");
            int id = Integer.parseInt(sid);
            String name = req.getParameter("name");
            int result = deptService.updateDept(new Dept(id, name));
            resp.sendRedirect("dept?action=list");
        }else if ("add".equals(action)){
            String name = req.getParameter("name");
            int result = deptService.addDept(new Dept(name));
            resp.sendRedirect("dept?action=list");
        }

    }
}
